<!DOCTYPE html>
<html lang='en'>

<head>
    <meta charset='UTF-8'>
    <meta http-equiv='X-UA-Compatible' content='IE=edge'>
    <meta name='viewport' content='width=device-width, initial-scale=1.0'>
    <title>Document</title>
    <script src='../vue.js'></script>
</head>

<body>
    <div id='app'>
        <button @click="sortType=1">升序</button>
        <button @click="sortType=2">降序</button>
        <input type="text" v-model="search">
        <ul>
            <li v-for="item in newperson">
                {{item.name}}--{{item.age}}
            </li>
        </ul>
    </div>
    <script>
        Vue.config.productionTip = false;
        const vm = new Vue({
            el: '#app',
            data() {
                return {
                    search:'',
                    person: [
              { id: "001", name: "laowang", age: 18 },
              { id: "002", name: "xiaowang", age: 12 },
              { id: "003", name: "dawang", age: 33 },
              { id: "004", name: "xiaohuang", age: 6 },
            ],
            sortType:0,
                }
            },
            computed:{
                newperson(){
                    const filterResult=this.person.filter((item)=>{
                        return item.name.includes(this.search)
                    });
                    return filterResult.sort((a,b)=>{
                        switch(this.sortType){
                            case 1:
                                return a.age-b.age;
                            case 2:
                                return b.age-a.age    
                        }
                    })
                }
            }
        })
    </script>
</body>

</html>